diff options
| author | David Miller <davem@t1000.davemloft.net> | 2007-06-03 23:38:09 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-06-04 21:49:57 -0700 |
| commit | d887ab3a9b1899f88b8cfba531e726b5fb2ebd14 (patch) | |
| tree | 2f60de04ddf40419c295da0d9f64024fdc53d372 /arch/sparc64/kernel/entry.S | |
| parent | 48b67356400dd7866c035024aeaa2f804de7cead (diff) | |
[SPARC64]: Provide mmu statistics via sysfs.
If the system supports hypervisor based statistics, allow them to
be fetched, enabled, and disabled via sysfs.
Enable and disable via the boolean:
/sys/devices/systems/cpu/cpuN/mmustat_enable
Statistic values are provided under:
/sys/devices/systems/cpu/cpuN/mmu_status/
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/entry.S')
| -rw-r--r-- | arch/sparc64/kernel/entry.S | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index 5b2831590093..7d1a11822a1e 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -2570,3 +2570,25 @@ sun4v_svc_clrstatus: retl nop .size sun4v_svc_clrstatus, .-sun4v_svc_clrstatus + + .globl sun4v_mmustat_conf + .type sun4v_mmustat_conf,#function +sun4v_mmustat_conf: + mov %o1, %o4 + mov HV_FAST_MMUSTAT_CONF, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop + .size sun4v_mmustat_conf, .-sun4v_mmustat_conf + + .globl sun4v_mmustat_info + .type sun4v_mmustat_info,#function +sun4v_mmustat_info: + mov %o0, %o4 + mov HV_FAST_MMUSTAT_INFO, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + retl + nop + .size sun4v_mmustat_info, .-sun4v_mmustat_info |